1201403431951 has 2 divisors, whose sum is σ = 1201403431952. Its totient is φ = 1201403431950.

The previous prime is 1201403431931. The next prime is 1201403431973. The reversal of 1201403431951 is 1591343041021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201403431951 - 2¹⁷ = 1201403300879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201403431931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600701715975 + 600701715976.

It is an arithmetic number, because the mean of its divisors is an integer number (600701715976).

Almost surely, 2^{1201403431951} is an apocalyptic number.

1201403431951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201403431951 is an equidigital number, since it uses as much as digits as its factorization.

1201403431951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 1201403431951 its reverse (1591343041021), we get a palindrome (2792746472972).

The spelling of 1201403431951 in words is "one trillion, two hundred one billion, four hundred three million, four hundred thirty-one thousand, nine hundred fifty-one".